<template>
    <div>
        <!-- 面包屑导航 -->
         <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
         </el-breadcrumb>
         <!-- 卡片视图 -->
         <el-card>
             <!-- 搜索框 -->
             <el-row :gutter="20">
                 <el-col :span="8">
                      <el-input placeholder="请输入内容" 
                      v-model="queryInfo.query"  clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                      </el-input>
                 </el-col>
                 <el-col :span="4">
                      <el-button type="primary" @click="goAddpage">添加商品</el-button>
                 </el-col>
             </el-row>

             <!-- table表格区 -->
             <el-table :data="goodslist" border stripe>
                  <el-table-column type="index"></el-table-column>
                  <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                  <el-table-column label="商品价格(元)" prop="goods_price" width="95px" ></el-table-column>  
                  <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>                  
                  <el-table-column label="创建时间" prop="add_time" width="140px">
                     <template slot-scope="scope">
                         {{scope.row.add_time | dateFormat}}
                     </template>
                  </el-table-column>                  
                  <el-table-column label="操作" width="130px">
                      <template slot-scope="scope">
                         <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
                         <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(scope.row.goods_id)"></el-button>
                      </template>
                  </el-table-column>                  

             </el-table>

             <!-- 分页功能 -->
              <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total" background>
              </el-pagination>

         </el-card>
    </div>
</template>

<script>
export default {
    data(){
        return {
          //查询参数对象
          queryInfo:{
              query:'',
              pagenum:1,
              pagesize:10
          },
          //商品列表
          goodslist:[],
          //总数据条数
          total:0,

        }
    },
    created(){
        this.getGoodsList()
    },
    methods:{
        //根据分页获取对应的商品
        async getGoodsList(){
           const {data:res}=await this.$http.get('goods',
           {params:this.queryInfo})

           if(res.meta.status!==200){
               return this.$message.error('获取商品列表失败')
           }
           
           this.$message.success('获取商品列表成功')
            
           console.log(res.data);
           this.goodslist=res.data.goods
           this.total=res.data.total
            
        },
        handleSizeChange(newSize){
           this.queryInfo.pagesize=newSize
           this.getGoodsList()
        },
        handleCurrentChange(newPage){
           this.queryInfo.pagenum=newPage
           this.getGoodsList()
        },
        //删除操作 
        async removeById(id){
            const confirmResult=await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
             confirmButtonText: '确定',
             cancelButtonText: '取消',
             type: 'warning'
          }).catch(err=>err)
           
           if(confirmResult!=='confirm'){
               return this.$message.info('已取消删除')
           }
            
            const {data:res}=await this.$http.delete(`goods/${id}`)
           
           if(res.meta.status!==200){
               return this.$message.error('删除商品失败')
           }
           this.$message.success('删除商品成功')
           this.getGoodsList()
        },
        //点击添加商品，跳转到详情页
        goAddpage(){
            this.$router.push('/goods/add')
        }
    }
}
</script>

<style lang="less" scoped>

</style>
